Sifos Technologies PhyView PVA-3000 User Manual

PVA-3000 Reference Manual
December 2, 2019 Sifos Technologies
Page
111
Parameter
Value
Meaning
Mstr_Time(sec)
Link_Time
Time to link to local MASTER (link partner= SLAVE) reported in seconds
TIMEOUT
Failure to establish link with forced MASTER (link partner forced SLAVE)
N/A
Could not be assessed – not applicable
Slv_Time(sec)
Link_Time
Time to link to local SLAVE (link partner= MASTER) reported in seconds
TIMEOUT
Failure to establish link with forced SLAVE (link partner forced MASTER)
N/A
Could not be assessed – not applicable
Stability
OK
Port-under-Test Links Reliably to PVA Test Port at 1000Base-T
UNSTABLE
1000Base-T: Port-under-Test has AGC limitations requiring long cable to link
10/100Base-T: Port does not maintain link continuously over 30 sec period
NO_RELINK
10/100 Port-under-Test fails to respond to link partner Auto-Neg Re-Start
TrainingTime(sec)
Training_Time
Time from 1000Base-T Auto-Neg Resolution to Link-Up at 1000Base-T
Link Time (10)
Time (x.y sec)
Time from physical connect until Link Up with 10Base-T link partner
Link Time (100)
Time (x.y sec)
Time from physical connect until Link Up with 100Base-Tx link partner
Link Time (Mstr)
Time (x.y sec)
Time from physical connect until Link Up with 1000Base-T Slave link partner
Link Time (Slv)
Time (x.y sec)
Time from physical connect until Link Up with 1000Base-T Master link partner
Link Stability
(by Rate, Duplex,
MDI/MDI-X,
Gigabit Mode)
100
Link is stable (100 link state samples over 2 seconds) at Rate, Duplex,
Connection Polarity, and Gigabit Mode
1 - 100
Link is not stable at Rate, Duplex, Connection Polarity, and Gigabit Mode
0
Link is not feasible at Rate, Duplex, Connection Polarity, and Gigabit Mode
When the PHY Performance Test Suite is sequenced, the pva_caps test is always run first on each test port. This
allows the sequencer to determine if other tests are appropriate for the device-under-test (DUT). For example, if the
DUT is not 1000BaseT capable, the 1000BaseT Transmitter/Interface and 1000BaseT Receiver tests would be
bypassed in the sequence. If the pva_caps test is not included in the test sequence, then the test sequencer will utilize
the pva_partner measurement (see Sections 0 and 4.10) to determine DUT capabilities prior to executing other tests.
5.3. Transmission and Interface Tests
The Transmission and Interface tests assess physical layer transmitter performance characteristics (see Section 1.3.2)
and interface characteristics (see Section 1.3.7). Tests are available for 100BaseTx and/or 1000BaseT capable DUT’s.
(Note: There is no specific test for 10BaseT transmitters.)
Generally these tests are readily sequenced to one or more DUT ports. When connected directly to a DUT using the
PVA test leads, the testing is a direct measure of 10/100/1000BaseT port performance.
The tests can also be meaningful when testing remote Ethernet service outlets and passive link media. When testing
remote Ethernet service outlets, these tests provide a view of the transmitted signal quality and interface characteristics
at that outlet. Passive link media can be connected between a test port and a reference Ethernet port to assess signal
degradation and transmission characteristics of that media including insertion loss (from PSD), return loss, crosstalk,
and electrical length (or timing skew).
5.3.1. 100BaseTx Transmission Test
The pva_tx_100 test evaluates transmitted signal characteristics of the DUT. By default, the test will attempt to
perform the various measurements for both MDI and MDI-X links because 100BaseTx ports that support auto-MDI
effectively have two transmitters. If the results of the pva_caps test determine that the DUT only supports a single
polarity, then the test will be performed for only that specific transmit pair.
Connection polarity is defined in terms of the DUT. When the test is checking the MDI polarity, pair 2 is being
evaluated. When the test is checking the MDI-X polarity, pair 3 is being evaluated. The test port will re-link with the
DUT for each polarity.
The following transmitted signal characteristics are directly evaluated per transmitting pair:
 Wideband Tx Power Level (dB relative to nominal wideband 100BaseTx transmitter)
 SNR (dB Signal / Residual Distortion)
 Low Frequency PSD (20 kHz – 2 MHz, dB relative to nominal 100BaseTx spectrum)
 Wide Band PSD (4 MHz – 100 MHz, dB relative to nominal 100BaseTx spectrum)
If the standard spreadsheet report is selected, the results of the PSD measurements will be used to estimate IEEE 802.3
peak-to-peak voltage levels (Vpp), waveform droop (%), and rise/fall time (nsec) on a per-pair basis. The measured
parameters will be displayed in both tabular and graphical form, shown below in Section 5.5.

Sifos Technologies PhyView PVA-3000 Specifications

General

Brand	Sifos Technologies
Model	PhyView PVA-3000
Category	Measuring Instruments
Language	English